Build a modern BMI calculator app in Flutter with clean UI, reusable widgets, and real-world logic
Based on early student feedback
Learners (1,420+)
Beginner-friendly · Project-based · No boring theory
Gumroad: $7.99 (PPP discounts available)
Patreon: $5/month · Access all classes
What You’ll Learn
In this class, you’ll build a complete and functional BMI Calculator Android app using Flutter. Instead of isolated widget demos, you’ll learn how real Flutter apps are structured, how data flows through the UI, and how logic and design work together in a production-style project.
You will learn how to:
- Create and structure a real Flutter project from scratch
- Build clean, reusable widgets for inputs and UI sections
- Design modern UIs using Material 3
- Manage state using
StatefulWidgetandsetState - Collect and validate user input correctly
- Calculate BMI and update the UI dynamically
- Apply conditional styling based on app logic
- Organize code into screens and widgets for maintainability
By the end of this class, you won’t just understand how a BMI calculator works — you’ll have the confidence to build similar real-world Flutter apps and extend this project with your own features.
This Class Includes
This class is designed to be simple, practical, and focused on building a real Flutter application from start to finish. Everything is explained step by step, making it easy to follow even if you’re new to Flutter app development.
This class includes:
- Step-by-step video lessons
- Full source code for the BMI Calculator app
- A complete Flutter project structure
- Modern Material 3 UI implementation
- Reusable widgets and clean coding practices
- Real-world input validation and logic
- Lifetime access to the course content
By the end of this class, you’ll have a fully working Android app and a solid understanding of how to structure, build, and extend Flutter projects with confidence.
Course Content
This class is carefully structured to take you from a blank Flutter project to a fully functional BMI Calculator app. Each lesson builds on the previous one, focusing on one concept at a time so you can learn without feeling lost or rushed.
View lesson breakdown
By the end of the course, you’ll have completed a real-world Flutter app and gained practical experience that you can apply to your own projects or future app ideas.
Requirements / Prerequisites
This class is designed to be beginner-friendly and does not require advanced Flutter knowledge. As long as you’re comfortable with basic programming concepts, you’ll be able to follow along and build the app step by step.
To get the most out of this class, you should have:
- Basic understanding of programming concepts
- Flutter and Dart installed on your system
- A code editor such as VS Code or Android Studio
- An Android emulator or a physical device for testing
If you’re new to Flutter, this class will help you build confidence by working on a real, practical project from start to finish.
Description
This class walks you through building a complete BMI Calculator Android app using Flutter, focusing on real-world structure, clean UI, and practical logic. Instead of isolated widget examples, you’ll work on a full project that shows how Flutter apps are actually built and organized.
You’ll start by setting up the project and building the UI step by step using Material 3. Along the way, you’ll create reusable widgets, design user-friendly input forms, display BMI results dynamically, and apply visual feedback based on the calculated values. Every concept is explained clearly, making it easy to follow even if you’re still getting comfortable with Flutter.
By the end of the class, you’ll have a fully functional BMI calculator app and a solid understanding of how to connect user input, business logic, and UI in Flutter. The skills you learn here can be applied to many other real-world apps, giving you the confidence to continue building and improving your own Flutter projects.
Who This Class Is For
This class is ideal for anyone who wants to move beyond basic Flutter tutorials and start building real, functional applications. If you learn best by creating complete projects and understanding how everything fits together, this class is made for you.
This class is perfect for:
- Beginners who are learning Flutter and want a practical project
- Developers who understand Flutter basics but lack project confidence
- Students who want to improve UI building and state handling
- Anyone interested in building real-world Android apps with Flutter
- Learners who prefer hands-on, step-by-step teaching
This class may not be ideal if you’re only looking for advanced state management or complex backend integration. However, if your goal is to build a strong Flutter foundation with a real app, this class will serve you extremely well.
FAQ
Below are some common questions students have before taking this class. If you’re unsure whether this course is right for you, these answers should help clarify things.
If you still have questions, feel free to reach out before enrolling. The goal of this class is to help you build real Flutter apps with clarity and confidence.
Build 100 Real Android Apps — Not Tutorials
A structured Flutter system where you ship full Android apps, learn production patterns, and escape tutorial hell permanently.
Gumroad: 50% off in many regions (PPP)
Patreon: $5/month · Access all classes
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